A Master form in a tabular format. Id is a display item. I want to auto generate Id with following query.
select nvl(max(issue_id),0)+1 into :issue_mt.issue_id from issue_mt;
It works:
1)When each record is saved before creating new record.
It doesn't work:
2)If multiple records are entered with out saving each record.
What to do to generate unique Id in both cases?
what is difference between primary key and unique+not null
View 12 Replies View RelatedI have in a plsql block somewhere a statement like
INSERT INTO TABLE1( id , col)
SELECT id, col
FROM TABLE2;
This statement returns an error ORA-00001: unique constraint because id is a primary key on TABLE1. I would like to know what is the value of id that raised the exception.
I'm trying to make a foreign key against a table which has a unique index instead of a primary key.
i get this error:
Error SQL: ORA-02270: no matching unique or primary key for this column-list
02270. 00000 - "no matching unique or primary key for this column-list"
*Cause: A REFERENCES clause in a CREATE/ALTER TABLE statement gives a column-list for which there is no matching unique or primary key constraint in the referenced table.
my question is (i've searched several times with no results) can i create a foreign key with a table wich has no primary key but a unique index ?example:
CREATE TABLE TABLE1(
IDTABLE1 NUMBER(5),
NAME VARCHAR2(30)
);
CREATE TABLE TABLE2(
[code]....
or TABLE1.IDTABLE1 must be a 'Primary Key' instead of unique index ?I know it should be primary, but i need to know if it would work with the index somehow. The reason is i'm migrating a large database and the original structure in mysql uses fk with indexes and no pks in some tables (48 to be precise)
I was cloning a schema user1 as user2 in the same database.
user1 had quota on 2 tablespaces user1_data and user1_index.
I created user with name as user2.
I created tablespace user2_data only and granted user2 unlimited quota on that tablespace only (did not grant him 'resource' role or unlimited tablespace privilege) Now exported user1 schema as follows
exp system/<passowrd> file=/u05/oradata/dump/user1_schema.dmp log=/u05/oradata/dump/user1_schema_exp.log owner=user1 rows=y constraints=y triggers=y indexes=y statistics=none recordlength=65535 compress=no consistent=n grants=y
then imported in in user2 schema as follows
imp system/<password> file=/u05/oradata/dump/user1_schema.dmp log=/u05/oradata/dump/user2_schema_imp.log fromuser=user1 touser=user2 rows=y constraints=y indexes=y statistics=none recordlength=65535 grants=y
during import i encountered following errors for so many constraints
"ALTER TABLE "table2" ADD CONSTRAINT "constraint_name1" FOREIGN KEY ("CTR_ID") REFERENCES "table1" ("CTR_ID") ENABLE NOVALIDATE"
IMP-00003: ORACLE error 2270 encountered
ORA-02270: no matching unique or primary key for this column-list
IMP-00017: following statement failed with ORACLE error 2270:
I found that the it happened as the primary key of table1 was not created for which error was logged in the log file
. . importing table "table1" 19441 rows imported
IMP-00015: following statement failed because the object already exists:
"ALTER TABLE "table1" ADD CONSTRAINT "T1_PK79" PRIMARY KEY ("CTR_"
"ID") USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 STORAGE(INITIAL 65536 F"
"REELISTS 1 FREELIST GROUPS 1) TABLESPACE "USER1_INDEX" LOGGING ENABLE "
. . importing table "table5" 0 rows imported
However, I checked that the T1_PK79 does not exist in the user2 schema though it exists in user1 schema Neither the index for priamry key (T1_PK79) existed in user2 schema not the table <table1> existed before this import Then what could be the reason that I am getting an error "IMP-00015: following statement failed because the object already exists"?
I assume tablespace for index would not be an issue here as other indexes got created properly in user2_index tablespace during this import.
I tried this twice, once with user2 schema and then with user3 schema as well (with different tablespace), but result is the same.
There were no users connected to the database during export and no background jobs were modiying any data in schema user1 while export.
I have two design alternatives and need to understand how expensive (speed) is one of them against the other for a medium size table (100K-200K records):
create table xyz
(
f1 number not null,
f2 varchar2(20) not null,
f3 number not null,
f4 varchar2(50),
[code]....
the idea is to optimize the design by using a PK instead of the 3 keys and there is a debate that searching a unique index field(2nd scenario) is of the same speed than searching a PK field (1st scenario).
11.2.0.1...How do I create an index on a view or any workaround that my view won't get duplicates?
SQL> create unique index indx01 on db_backup_details_vw(id);
create unique index indx01 on db_backup_details_vw(id)
*
ERROR at line 1:
ORA-01702: a view is not appropriate here
i want to insert unique number with out gaps in a col of a table every time my query runs . it shouel generate numbers from 1 to n. I can do it using sequence , but sequence need reseting and other user can reset it also and it creats gaps too.
Any function/technique which can give me session or transaction specific unique number on each call to sp.
i want to inserting these numbers in a table and insertion is going on in a loop.
I have following records in table (T)
Idtype_cdNbrDt
1A1001/1/2013
2A101Null
3B100Null
4C100Null
5A100Null
Based on the type-cd, I need to create Unique index on Nbr & Dt columns
In above record set, I want to create Unique index on type_cd=A and not on B&C (Here i expect duplictes for a combination of Nbr & Dt)
Can we create Unique index on subset of record?
primary key should be
W1
W2
W3 like this.
1,2,3 are sequence numbers.
I have a table that has three columns.
UserId - DateStamp - Action
An action contains user activities such as "logon". A user may logon multiple times in a day.I'm trying to create a query that displays the number of unique logons for each user per day.
By doing the following:
select userid, to_char(creationtimestamp,'YYYY-MM-DD'), count(*)
from useraction
where action = 'logon'
group by to_char(creationtimestamp,'YYYY-MM-DD'), userid
order by to_char(creationtimestamp,'YYYY-MM-DD') desc;
I can get the following results
userid - date - count
1 - 2/21/2010 - 8
1 - 2/22/2010 - 3
2 - 2/22/2010 - 2
1 - 2/23/2010 - 1
4 - 2/23/2010 - 6
6 - 2/23/2010 - 1
What I'm trying to get is
2/21/2010 - 1
2/22/2010 - 2
2/22/2010 - 3
how to create a primary key with out creating an index?
View 10 Replies View RelatedCreate table X(
var1 varchar2(20) null,
var2 varchar2(20) not null,
constraint pk_var1 primary key(var1)
We all know Primary key doesnt treat NULL as a value. But the above statement is fine to be executed without problem.
Is this something to be highlighted? or am i not right in understanding 'var1 varchar2(20) null '?
I have to create primary key using local on a partitioned table.
Since the table is huge it has to be done parallel. Following stmt is giving error
alter table XYZ add CONSTRAINT PKN_XYZ PRIMARY KEY (ID,LogDtTm)
USING INDEX LOCAL parallel 25 INITRANS 5 TABLESPACE OLTP_IDX_TS ;
i'm new to oracle environment.how can i specify NONCLUSTERD INDEX on Primary cloumn during table creation.By default it will create clusterd index but i need non-clusterd index on it.
I'm using following stmt to create normal primary constarint during table creation,
CONSTRAINT PKFORM_PROPS PRIMARY KEY (FORM_PROPS_PK) USING INDEX TABLESPACE DB123_INDEX
how can i change the above query, so that it should create NONCLUSTERED INDEX on Primary key column.
I want to create a trigger with the requirement of achieving Primary key functionality.
I have a "EMP" table. the table already contains a duplicate data on "EMPNO" column. i want to restrict entering duplicate data further into table for that i want to create a trigger.
where can i find different triggering events of DML(like update, delete etc...)and DDL(database and schema level).
I'm trying to create a sequence for a primary key to simply auto-increment by the default of 1. I have a sql script written to generate mt tables, and I'm not sure how to modify the script to include the sequence. I also just want the sequence for a specific column, ie, PK, not the PK in all tables.
Here's a snippet from my script:
create table image
(
image_id int NOT NULL,
source_id int NOT NULL,
CONSTRAINT image_id_pk PRIMARY KEY (image_id),
CONSTRAINT fk_source_id FOREIGN KEY (source_id) REFERENCES source(source_id)
);
Would I add the create sequence statement right after the create table, and if so, how do I apply the sequence to only 1 table and a single column?
What is difference when you issue a create controlfile with "standby" keyword on the primary database
ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/path/db_stby.ctl';
vs. creating a control using
ALTER DATABASE BACKUP CONTROLFILE to '/path/db_control.ctl';
what does ORACLE put into the standby control that is "extra"? ie. what is the difference between a standby control file and a normal control file?
We have been recommended to store data in CLOD data type.
Sample data: 1:2:2000000:20000:4455:000099:444:099999:....etc it will grow to a large number.
We want to create a Unique index, for functional reason. Is it advised to create a unique index on a CLOB datatype?
Using Oracle 11g, below is the table, partitions, unique and non-unique local index:
CREATE TABLE DOCA( DOCA_ID NUMBER NOT NULL , DOCA_BKG_PAX_ID NUMBER NULL , ROW_PURGE_DATE DATE NULL ,)PARTITION BY RANGE(ROW_PURGE_DATE)INTERVAL(NUMTOYMINTERVAL(1, 'MONTH'))( PARTITION P2007 VALUES LESS THAN (TO_DATE('01/01/2008', 'dd/mm/yyyy')), PARTITION P200801 VALUES LESS THAN (TO_DATE('01/02/2008', 'dd/mm/yyyy')),) TABLESPACE T0; ALTER TABLE DOCA ENABLE ROW MOVEMENT;
CREATE UNIQUE INDEX XPKDOCA ON DOCA( DOCA_ID ASC, ROW_PURGE_DATE ASC)LOCALREVERSE TABLESPACE I0; ALTER TABLE DOCA ADD CONSTRAINT XPKDOCA PRIMARY KEY (DOCA_ID); CREATE INDEX XFKDOCA_DOCA_BKG_PAX_ID ON DOCA( DOCA_BKG_PAX_ID ASC)LOCALREVERSETABLESPACE I0;
I would like to know the difference between the performance of the unique and non-unique local indexes?.
I have disabled the primary key on a table using this...ALTER TABLE C_LOV_BOROUGH DISABLE CONSTRAINT CLOVBOROUGH_PK CASCADE;
but now when I try to insert duplicate value. It gives this error.
ORA-00001: unique constraint (LOT_DBA.CLOVBOROUGH_PK) violated
I have a table
TAB1 with data
no name
1 abc
2 abc
3 xyz
4 xyz
5 cvb
now I would like to create a form with name counts as
abc 2
xyz 2
cvb 1
I would like to create a datablock to display all the unique names, not sure where I should be writing the query to display unique names. I would like to create a textitem box to display the counts when the form is compiled, but not sure which trigger to use to write the query.
I'm trying to add a column in an existing form. I added a text item and defined it as a database item. When I tried to rename the item the message (frm-15500 valid and unique object name must be entered)appears, and therefore not able to exit the property Platte.
Is there a way I can exit the Platte and should I've first add the column to the data block and then rename in my form ?
is it possible to create primary key on view and use this view for creating foreign key .
View 3 Replies View RelatedIn my form i have a multi record block which is based on a table in which i am performing insertion, deletion, updation.
My requirement is as below,
While saving a records i want to check distinct value of specific item can not be greater than some value say 2. Then only my records should be saved. I am planning to populate those values in a collection table type and take the distinct values from it. How to populate record values in a collection table type.
I have a multi-record block with several text items.
On one of the text items i want to enter a value and then check whether the same value for the item has already been entered on any other records within the block.
If it has already been entered then i want to display a message and null out the field.
I have tried using app_record.for_All_records from a when-validat-item trigger but this does not work as you get a 'FRM-40737 Illegal restricted procedure go_block in when-validate-item trigger ' error
I have the search screen in my form so after searching if i select the row by using the button it will navigate the first tab page that is "gas" screen here if i tried to change the value like update and save the form it is not allowing me to update the value raising the error message "oracle unable to insert the record". if i see the "display error" in menu it is having the select statement with error "unique key violation error ora-00001".
In save button containe "commit_form"
I have made one application form where users need to enter some data. This data is getting inserted in four tables. As in for now the data is properly getting saved and retrieved only for one user at a time. But problem arrives when more than one users are simultaneously making an entry and saving the data at one time.Same number is getting generated for the users who are saving the data at one time which should not happen.
View 4 Replies View RelatedI am having template table as
template_name varchar2(100) -- primaykey
ex_col varchar2(100)
tab_colvarchar2(100)
Now on the form 6i i've two columns with following data
Column AColumn2 B
-------------------------------------
route a_route
time a_time
id a_id
and a text field where the name of the template will be entered.
e.g.
text filed - testing
In template table i want to insert above values, so template table will look like this
template_name ex_col tab_col
-----------------------------------------------------
testing route a_route
time a_time
id a_id
since tempate_name is primary key, i how should i construct for loop for insert.
I've a master detail form. I detail form there is no primary key. When it is executed the following error displayed :
FRM-30100: Block must have at least one primary key item.
Block: ASSETS_ISSUE_DTL
Form: FORM_ASSETS_ISSUE_DTL